搜索
It was cool last Sunday. I went to the People’s Park with my friends in the morning. We went to the park by bike together. There were so many people in the park. They were playing happily. We played ping-pong there. We were so tired but we were happy. Suddenly the ball fell into the lake. We were sad. A black dog saw it and jumped into the lake. He swam to the ball and brought it back to us! “Thank you! We said to the dog.” What a funny day!
1．How was the weather last Sunday? ( )| A．It was cold. | B．It was snowy. | C．It was cool. |
| A．On foot. | B．By bike. | C．By bus. |
| A．They played football. | B．They played ping-pong. | C．They took pictures. |
| A．Because they were tired. | B．Because they played ping-pong. | C．Because the ball fell into the lake. |
| A．A black dog. | B．A little boy. | C．I don’t know. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
